Hanami is often used with dry-rb + ROM + Hanami as an alternative to Rails. My experience has not been with Hanami itself but with the rest of the Dry ecosyste

Hanami is often used with dry-rb + ROM + Hanami as an alternative to Rails. My experience has not been with Hanami itself but with the rest of the Dry ecosystem. Upgrading a legacy app with Dry-Validation put me off using anything else related to it. The breaking changes of DSL around the launch of 1.0 and the split into Dry-Validation + Dry-Schema was particularly painful. In contrast upgrading from Rails 5.0 > 6.0 > 7.0 has been much smoother. I prefer POROs for business logic plus ActiveModel for validation. If I needed small performance bump with minimal rewrite I'd probably migrate to some combination of Sequel + Roda.